20 #include "JackLibSampleRateResampler.h"    21 #include "JackError.h"    26 JackLibSampleRateResampler::JackLibSampleRateResampler()
    30     fResampler = src_new(SRC_LINEAR, 1, &error);
    32         jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
    36 JackLibSampleRateResampler::JackLibSampleRateResampler(
unsigned int quality)
    44             quality = SRC_ZERO_ORDER_HOLD;
    47             quality = SRC_SINC_FASTEST;
    50             quality = SRC_SINC_MEDIUM_QUALITY;
    53             quality = SRC_SINC_BEST_QUALITY;
    62     fResampler = src_new(quality, 1, &error);
    64         jack_error(
"JackLibSampleRateResampler::JackLibSampleRateResampler err = %s", src_strerror(error));
    68 JackLibSampleRateResampler::~JackLibSampleRateResampler()
    70     src_delete(fResampler);
    73 void JackLibSampleRateResampler::Reset(
unsigned int new_size)
    75     JackResampler::Reset(new_size);
    76     src_reset(fResampler);
    79 unsigned int JackLibSampleRateResampler::ReadResample(jack_default_audio_sample_t* buffer, 
unsigned int frames)
    83     unsigned int frames_to_write = frames;
    84     unsigned int written_frames = 0;
    88     unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) / 
sizeof(jack_default_audio_sample_t);
    89     jack_log(
"Output available = %ld", available_frames);
    91     for (
int j = 0; j < 2; j++) {
    93         if (ring_buffer_data[j].len > 0) {
    95             src_data.data_in = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
    96             src_data.data_out = &buffer[written_frames];
    97             src_data.input_frames = ring_buffer_data[j].len / 
sizeof(jack_default_audio_sample_t);
    98             src_data.output_frames = frames_to_write;
    99             src_data.end_of_input = 0;
   100             src_data.src_ratio = fRatio;
   102             res = src_process(fResampler, &src_data);
   104                 jack_error(
"JackLibSampleRateResampler::ReadResample ratio = %f err = %s", fRatio, src_strerror(res));
   108             frames_to_write -= src_data.output_frames_gen;
   109             written_frames += src_data.output_frames_gen;
   111             if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
   112                 jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"   113                     , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
   116             jack_log(
"Output : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
   121     if (written_frames < frames) {
   122         jack_error(
"Output available = %ld", available_frames);
   123         jack_error(
"JackLibSampleRateResampler::ReadResample error written_frames = %ld", written_frames);
   126     return written_frames;
   129 unsigned int JackLibSampleRateResampler::WriteResample(jack_default_audio_sample_t* buffer, 
unsigned int frames)
   133     unsigned int frames_to_read = frames;
   134     unsigned int read_frames = 0;
   138     unsigned int available_frames = (ring_buffer_data[0].len + ring_buffer_data[1].len) / 
sizeof(jack_default_audio_sample_t);
   139     jack_log(
"Input available = %ld", available_frames);
   141     for (
int j = 0; j < 2; j++) {
   143         if (ring_buffer_data[j].len > 0) {
   145             src_data.data_in = &buffer[read_frames];
   146             src_data.data_out = (jack_default_audio_sample_t*)ring_buffer_data[j].buf;
   147             src_data.input_frames = frames_to_read;
   148             src_data.output_frames = (ring_buffer_data[j].len / 
sizeof(jack_default_audio_sample_t));
   149             src_data.end_of_input = 0;
   150             src_data.src_ratio = fRatio;
   152             res = src_process(fResampler, &src_data);
   154                 jack_error(
"JackLibSampleRateResampler::WriteResample ratio = %f err = %s", fRatio, src_strerror(res));
   158             frames_to_read -= src_data.input_frames_used;
   159             read_frames += src_data.input_frames_used;
   161             if ((src_data.input_frames_used == 0 || src_data.output_frames_gen == 0) && j == 0) {
   162                 jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld frames1 = %lu frames2 = %lu"   163                     , j, src_data.input_frames_used, src_data.output_frames_gen, ring_buffer_data[0].len, ring_buffer_data[1].len);
   166             jack_log(
"Input : j = %d input_frames_used = %ld output_frames_gen = %ld", j, src_data.input_frames_used, src_data.output_frames_gen);
   171     if (read_frames < frames) {
   172         jack_error(
"Input available = %ld", available_frames);
   173         jack_error(
"JackLibSampleRateResampler::WriteResample error read_frames = %ld", read_frames);
 
void jack_ringbuffer_write_advance(jack_ringbuffer_t *rb, size_t cnt)
SERVER_EXPORT void jack_error(const char *fmt,...)
void jack_ringbuffer_get_read_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
void jack_ringbuffer_get_write_vector(const jack_ringbuffer_t *rb, jack_ringbuffer_data_t *vec)
void jack_ringbuffer_read_advance(jack_ringbuffer_t *rb, size_t cnt)
SERVER_EXPORT void jack_log(const char *fmt,...)